Advanced Materials for Engineering Applications – Page 15

Development of surface chemical approaches for detection and characterization of multi-walled carbon nanotubes dispersed in a polymer composite

Gorham J.M., Osborn W.A., Woodcock J.W., Scott K.C.K., Heddleston J.M., Hight Walker A.R., Gilman J.W., NIST, US

Multi-walled carbon nanotubes (MWCNT) and other carbon nanofillers are used in different applications to enhance the materials and electrical properties of consumer products as polymer composites. As a result, concern has arisen regarding the potential [...]

Dielectric properties and charge storage optimization in poly(vinylidene fluoride) polymer matrix hybrid nanocomposites with BaTiO3 and multi-walled carbon nanotubes

Jin Y., Gerhardt R.A., Georgia Institute of Technology, US

Poly(vinylidene fluoride)(PVDF) matrix hybrid nanocomposites featuring ferroelectric barium titanate nanoparticles and multi-walled carbon nanotubes(MWCNT) embedded in the polymer were fabricated by miscible-immiscible coagulation method followed by hot pressing [1]. The SEM images showed good distribution [...]

Advanced Materials for self-healing electrical insulation systems

Basu S., German I., Rhodes R., Stevens G.C., Thomas J., Gnosys Global Ltd, UK

Recently, there have been significant advancements in the development of self-healing materials. When damaged, these materials are capable of autonomously repairing the damage, restoring the pre-damage characteristics of the material and preserving asset integrity. This [...]

Effect of Graphitic Filler Characteristics on the Percolation Behavior and Electrical Conductivity of Segregated Network Polymer Composites

Prystaj L., Lucas E.A., Alston K., Gerhardt R.A., Georgia Institute of Technology, US

Polymer composites can be used for applications such as electromagnetic shielding devices, self-regulating heaters, over temperature protection structures, temperature sensors, devices that can control and regulate the flow of electrical current as well as antistatic [...]

Composite Materials

Preparation of ion group functionalized diblock copolymers and examination of their thermogelling properties

Lee B.K., Kwon D.Y., Kwon J.S., Park J.H., Kwon D.Y., Kwon J.S., Kim J.H., Kim M.S., Oh S.H., Kim J.H., Kim M.S., Ajou University, KR

To investigate thermogelling behavior, in this study, methoxy polyethylene glycol-b-[poly(ε-caprolactone)-ran-poly(6-chloride-ε-caprolactone) (PCL-ran-PfCL)] (PCL-Cl) diblock copolymers were designed such that the PfCL content in the PCL segment was varied. The PCL-Cl diblock copolymers were derivatized by introducing [...]

Non-destructive imaging analysis of unstable foam structures using 3D computed tomography

Eggert A., Müller M., Nachtrab F., Dombrowski J., Rack A., Zabler S., Fraunhofer Institute for Integrated Systems IIS, DE

In this contribution a laboratory CT setup is presented allowing the acquisition of 3D data sets in less than 15 s. The suitability and possibilities of such a system for unstable foams and other porous [...]

New Insights into Microstructure, Rheology & Molecular Level Structural Changes During Self-Assembly & Gelation in Complex Fluids Through Combined DLS-Optical Microrheology-Raman Spectroscopy

Amin S., Blake S., Kidder L., Lewis E.N., Kenyon S., Malvern Instruments, US

Soft Matter/Complex fluid systems are ubiquitous across a range of industrial and consumer sectors. In many instances the final product format of these complex fluids are gels or soft solids and the processing and product [...]

SRD-MD modelling of hydrodynamic interactions in colloidal systems: playing between computational cost and resolution

Laganapan A.M.K., Videcoq A., Cerbelaud M., Mouas M., Bienia M., Ferrando R., Science of Ceramic Processing and Surface Treatments (SPCTS), FR

A ubiquitous problem that has always been a subject of intensive research is the role played by hydrodynamic interactions (HI’s) in several fundamental problems in colloid rheology and aggregation kinetics. However, the high computational demand [...]

Simulation of the suspension structure for the improve of colloidal processes

Cerbelaud M., Videcoq A., Lestriez B., Guyomard D., Ferrando R., CNRS, FR

Colloidal processes are used in many fields of applications to produce multi-material components with specific microstructures. Here, controlling the structure of colloidal suspensions is crucial in order to reliably adapt the suspension rheology to the [...]